Firstly Check you java version and installed eclipse version because

the error that you are getting is occurred mainly due to:


-incompatible sdk and jdk versions

-using a 32 bit java version for your 64 bit eclipse JVM (programfilex86-java)


Firstly check the eclipse.ini file to see if you have a path that is pointing to your jdk it should look something like this

-vm    

C:\Program Files\Java\blah\blah\blah\javaw.exe    


if not then locate the jdk 7 javaw.exe file

sample :


C:\Program Files\Java\jdk1.7.0_45\jre\bin\javaw.exe 


paste -vm and the path below it into your eclipse.ini file

-vm  

C:\Program Files\Java\jdk1.7.0_45\jre\bin\javaw.exe    

    

make sure that you type the above just before the -vmargs and after the OpenFile


Hope it resolves your query.

If you have any further issue,please let us know.